Originally Posted By Randall_Rausch:I ran some quickload simulations at 62,000 PSI peak chamber pressure.55gr sierra HPBT gets you 3320 in a 20" and 3240 in an 18" barrel.75gr Vmax gets you 2900 in a 20" and 2840 in an 18" barrel.

Wow, thank you Randall! I appreciate you running those numbers. The difference isn't that big.

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